An insect growth regulator (IGR) is a substance (chemical) that inhibits the life cycle of an insect. IGRs are typically used to control populations of harmful pests, such as cockroaches or fleas.n insect growth regulator (IGR) is a substance (chemical) that inhibits the life cycle of an insect. IGRs are typically used to control populations of harmful pests, such as cockroaches or fleas.
Diet and supplementation are essential to the bone growing process. Including real, whole foods in your diet such as plentiful vegetables, fruits, nuts, cold-water fatty fish like salmon, and legumes. Plus, cutting out highly processed and sugary foods will provide your bones with what they need.
Adequate intakes of calcium (500 mg per day or more) and of vitamin D in populations with high osteoporosis rates helps to reduce fracture risk, so does sun exposure and physical activity to strengthen bones and muscles.